package com.xieke.test.springbootdruid.config;

import java.sql.SQLException;
import javax.sql.DataSource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import com.alibaba.druid.pool.DruidDataSource;

/**
 * Druid数据源配置
 */
@Configuration
@Primary //在同样的DataSource中，首先使用被标注的DataSource
public class DruidDataSourceConfig extends DataSourceProperties{

    private Logger logger = LoggerFactory.getLogger(DruidDataSourceConfig.class);

    @Value("${spring.datasource.url}")  
    private String dbUrl;  

    @Value("${spring.datasource.username}")  
    private String username;  

    @Value("${spring.datasource.password}")  
    private String password;  

    @Value("${spring.datasource.driverClassName}")  
    private String driverClassName;  

    @Value("${spring.datasource.initialSize}")  
    private int initialSize;  

    @Value("${spring.datasource.minIdle}")  
    private int minIdle;  

    @Value("${spring.datasource.maxActive}")  
    private int maxActive;  

    @Value("${spring.datasource.maxWait}")  
    private int maxWait;  

    @Value("${spring.datasource.timeBetweenEvictionRunsMillis}")  
    private int timeBetweenEvictionRunsMillis;  

    @Value("${spring.datasource.minEvictableIdleTimeMillis}")  
    private int minEvictableIdleTimeMillis;  

    @Value("${spring.datasource.validationQuery}")  
    private String validationQuery;  

    @Value("${spring.datasource.testWhileIdle}")  
    private boolean testWhileIdle;  

    @Value("${spring.datasource.testOnBorrow}")  
    private boolean testOnBorrow;  

    @Value("${spring.datasource.testOnReturn}")  
    private boolean testOnReturn;  

    @Value("${spring.datasource.poolPreparedStatements}")  
    private boolean poolPreparedStatements;  

    @Value("${spring.datasource.maxPoolPreparedStatementPerConnectionSize}")  
    private int maxPoolPreparedStatementPerConnectionSize;  

    @Value("${spring.datasource.filters}")  
    private String filters;  

    @Value("${spring.datasource.connectionProperties}")
    private String connectionProperties;  

    @Bean //声明其为Bean实例
    public DataSource dataSource(){  
        DruidDataSource datasource = new DruidDataSource();  

        datasource.setUrl(this.dbUrl);  
        datasource.setUsername(username);  
        datasource.setPassword(password);  
        datasource.setDriverClassName(driverClassName);  

        //configuration  
        datasource.setInitialSize(initialSize);  
        datasource.setMinIdle(minIdle);  
        datasource.setMaxActive(maxActive);  
        datasource.setMaxWait(maxWait);  
        datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);  
        datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);  
        datasource.setValidationQuery(validationQuery);  
        datasource.setTestWhileIdle(testWhileIdle);  
        datasource.setTestOnBorrow(testOnBorrow);  
        datasource.setTestOnReturn(testOnReturn);  
        datasource.setPoolPreparedStatements(poolPreparedStatements);  
        datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);  
        try {  
            datasource.setFilters(filters);  
        } catch (SQLException e) {  
            logger.error("druid configuration initialization filter", e);  
        }  
        datasource.setConnectionProperties(connectionProperties);  

        return datasource;  
    }
}